28 



COMPARATIVE ZOOLOGY. 



[Jan. 



EEPORT ON RADIATA. 



By L. F. PouRTALES, Keeper of the Museum. 



During the last year the large quantity of duplicate corals 

 on band have been classified and put in order. A catalogue 

 of them has been prepared, so that they are now more readily 

 available for exchange or distribution. Several sets have 

 been selected and sent to parties to whom the Museum was 

 indebted for collections received. 



From the catalogue, it appears that the Museum has now on 

 hand, in the duplicate room, 6,463 specimens, representing 

 334 species. There are on exhibition 566 species of living, 

 and 479 species of fossil corals. The alcoholic specimens 

 and the Alcyoniria have not yet been placed on exhibition. 



The general collection of fossil corals is now being revised, 

 and a card catalogue of them is in preparation by Miss Hyde, 

 who also catalogued and arranged the duplicates. 



The collection of Ophiuridae and Astrophytidas, under Mr. 

 Lyman, has been enriched by numerous preparations of the. 

 hard parts, which have been mounted by Miss Clark. 



The horny sponges have been revised by Prof. Hyatt, and 

 those which had not been named by Prof. Oscar Schmidt have 

 been determined. 



The additions to this department have not been large 

 during the year. Mr. Gabb has made an additional donation 

 of tertiary fossil corals from Santo Domingo, and Mr. Agassiz 

 brought some interesting ones from Peru. 



